Quiz about IBDP ESS Y12 Ecology

Question 1

How does energy enter an ecosystem?

Accepted Answer

sunlight

Answer

soil

Answer

animals

Question 2

An important abiotic factor in ALL ecosystems is the

Accepted Answer

climate

Answer

ecology

Answer

plants

Answer

animals

Question 3

Autotrophs are organisms that

Accepted Answer

use energy they take in from the environment to convert inorganic molecules to organic molecules.

Answer

rely on other organisms for their energy & food supply.

Answer

consume plant & animal remains and other dead matter.

Answer

obtain energy by eating only plants.

Question 4

The total mass of living tissue at each trophic level can be shown in a(n)

Accepted Answer

biomass pyramid

Answer

energy pyramid

Answer

pyramid of numbers

Answer

biogeochemical cycle

Question 5

Why are food chains, such as the one shown, limited to 4-5 organisms?

Accepted Answer

Energy transfers are inefficient

Answer

There are not more organisms in the ecosystem

Answer

Organisms must share resources

Answer

They are only limited when organisms are living on land.

Question 6

At which trophic level can you find an herbivore?

Accepted Answer

2nd Level

Answer

1st Level

Answer

3rd Level

Answer

4th Level

Question 7

Why are decomposers necessary?

Accepted Answer

To take complex materials and break them down to basic stuff...

Answer

Because we compose too much...

Answer

To take basic materials and make them more complex...

Answer

So demusic can be really good...

Question 8

When energy is wasted or lost, it is in the form of what?

Accepted Answer

Heat

Answer

Carbon Dioxide

Answer

Water

Question 9

When humans burn fossil fuels, most of the carbon quickly enters the as carbon dioxide.

Accepted Answer

Atmosphere

Answer

Water

Answer

Sun

Answer

Air

Question 10

How do living organisms return carbon to the atmosphere in the carbon cycle?

Accepted Answer

decomposition and respiration

Answer

respiration and photosynthesis

Question 11

What are fossil fuels made from?

Accepted Answer

Plants and animals that are buried underground for millions of years.

Answer

They absorb it from the atmosphere.

Answer

Water

Answer

Wind

Question 12

What process occurs when coal (fossil fuel) is used for energy?

Accepted Answer

Combustion

Answer

Decomposition

Answer

Pressurization

Answer

Respiration

Question 13

Carbon can be found in...

Accepted Answer

All of the above

Answer

The atmosphere

Answer

Soil

Answer

Fossil fuels

Question 14

Carbon dioxide is created by

Accepted Answer

All answers are correct

Answer

Burning fossil fuels

Answer

Cellular respiration

Answer

Decomposing organic matter

Question 15

A relationship between two species where one benefits while the other is harmed.

Accepted Answer

Parasitism

Answer

Mutualism

Answer

Commensalism

Answer

Naturalism

Question 16

Which trophic level has the most total energy?

Accepted Answer

Producers

Answer

Primary Consumers

Answer

Secondary Consumers

Answer

Tertiary Consumers

Question 17

If an area has all the wolves that it can support, the wolf population has reached its _____________.

Accepted Answer

carrying capacity

Answer

population density

Answer

immigration

Answer

death rate

Question 18

What do we call the first species that colonize a new area?

Accepted Answer

Pioneer Species

Answer

Foreign Species

Answer

Intraspecies

Answer

Interspecies

Question 19

Explain the carbon cycle and its significance in the environment.

Accepted Answer

The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, ocean, and living organisms. It is significant in the environment as it helps regulate the Earth's climate and is essential for all living organisms.

Answer

The carbon cycle is the process by which nitrogen is exchanged between the atmosphere, land, ocean, and living organisms. It is significant in the environment as it helps regulate the Earth's water cycle.

Answer

The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, ocean, and non-living organisms. It is significant in the environment as it helps regulate the Earth's magnetic field.

Answer

The carbon cycle is the process by which oxygen is exchanged between the atmosphere, land, ocean, and living organisms. It is significant in the environment as it helps regulate the Earth's temperature.

Question 20

Photosynthesis removes carbon from which reservoir?

Accepted Answer

Atmosphere

Answer

Geosphere

Answer

Hydrosphere

Answer

Biosphere

Question 21

Which describes the relationship between plants and animals in the carbon cycle?

Accepted Answer

Plants take in carbon dioxide, animals breath out carbon dioxide

Answer

Plants produce and release carbon dioxide that animals need

Answer

Animals produce and release oxygen that plants need

Answer

Animals produce oxygen that plants turn into carbon dioxide

Question 22

Which does NOT produce carbon dioxide?

Accepted Answer

Photosynthesis

Answer

Combustion

Answer

Decomposition

Answer

Respiration

Question 23

TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.

Accepted Answer

True

Answer

False

Question 24

How do animals get carbon?

Accepted Answer

By eating plants and or other animals.

Answer

They absorb it from the atmosphere.

Answer

From the ground

Answer

They do not get carbon from anywhere.

Question 25

How does the concentration of carbon dioxide in the atmosphere affect climate?

Accepted Answer

As carbon dioxide concentrations increases temperature increases

Answer

As carbon dioxide concentrations increases temperature decreases

Answer

carbon dioxide concentrations have no affect on climate

Answer

as carbon dioxide concentrations increase, temperature becomes more random

IBDP ESS Y12 Ecology

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